The 40L storage type electric water heater is suitable for 1-2 people, the 60L water heater is suitable for 2-4 people, and the 80L water heater is best chosen for 4-6 people. The electric water heater heats up for 20-40 minutes to reach the set temperature. The heating time will vary depending on the inlet water temperature, the amount of water stored and the frequency of use.